Knee Arthroplasty Activity Trial

Launched by BRIGHAM AND WOMEN'S HOSPITAL · Sep 26, 2019

Keywords

ClinConnect Summary

The Knee Arthroplasty Activity Trial (KArAT) is studying ways to help people who have had total knee replacement surgery become more physically active after their operation. Although knee replacement surgery can reduce pain and improve movement, many patients don’t move around as much afterward as they did before the surgery. This trial aims to see if adding different types of support—like activity trackers and motivational coaching—can encourage patients to be more active and improve their overall quality of life.

To participate, you need to be between 40 and 85 years old, speak English, and be scheduled for a total knee replacement due to knee osteoarthritis. You'll also need to show that you can wear an activity tracker before your surgery. Participants will receive standard post-surgery care, and some will be given extra tools to help them track their activity and stay motivated. The trial is currently recruiting, and everyone involved will help researchers understand how to better support knee replacement patients in leading active lives.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Age 40-85 years
• • English-speaking
• • Scheduled to undergo primary, unilateral total knee replacement (TKR) at one of the 4 recruitment centers
• • OA is principal underlying indication for TKR
• • During an accelerometer run-in period lasting one week at baseline (prior to surgery), subjects must show that they can comply with waist-worn physical activity tracker protocols by wearing the activity tracker for ≥4/7 days of the week for ≥10 hours/day
• • Regular access to a personal computer, laptop, tablet, or smartphone for wrist-worn activity tracker syncing
• • Satisfying average baseline steps/day criteria (calculated from waist-worn activity tracker data from the run-in period)
• Exclusion Criteria:
• • Non-English speaking
• • Residence in nursing home
• • Diagnosis of dementia, epilepsy, Parkinson's Disease, or diabetes with peripheral neuropathy
• • Inflammatory arthritis (rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, reactive arthritis, systemic lupus erythematosus, polymyalgia)
• • Psychological issues that preclude participation
• • Inpatient or other musculoskeletal surgery scheduled within six months following index primary TKR
• • Uses a wheelchair to ambulate (subjects who use a cane will be eligible)
• • Surgeon-documented other reason for study exclusion
• • Subject does not have regular access to a device capable of receiving email or text messages